Azure Computer Vision API - OCR to Text on PDF files

pdf ocr microsoft-cognitive
gschwendt picture gschwendt · Sep 28, 2018 · Viewed 13.3k times · Source

I'm attempting to leverage the Computer Vision API to OCR a PDF file that is a scanned document but is treated as an image PDF.

I've tested it and it tells me that the PDF is "InvalidImageFormat", "Input data is not a valid image". When I test it on a PNG, it works perfectly.

Is there anyway to use the API against a PDF image or is there an Azure API that I could use in conjunction to go PDF > PNG > Text?

Answer

TrnKh picture TrnKh · Mar 15, 2019

The latest OCR service offered recently by Microsoft Azure is called Recognize Text, which significantly outperforms the previous OCR engine. Recognize Text can now be used with Read, which reads and digitizes PDF documents up to 200 pages.

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